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14. Troubleshooting
Problem
Motor does not start up
Motor has trouble starting or
loses power
Motor operates irregularly
Motor locks up at high
speeds
Motor overheats
Motor vibrates abnormally
28 | GB
Possible cause
1. The starter is not in the correct position
for the prevailing conditions
2. The reservoir is empty
3. The air filter components are dirty
4. Spark plug is loose
5. Spark plug wire improperly attached or
disconnected from the outlet
6. Incorrect spark plug gap
7. Defective spark plug
8. Carburetor immersed in gasoline - Gas
switch is in the OFF position
1. Lighter module defective
2. Dirt, water or mold from the gas tank
3. The hole in the tank stopper is obstruct-
ed
4. The air filter components are dirty
1. Air filter components are dirty
2. The throttle level is blocked by debris
3. Cooling fins and air passages under the
motor are blocked
1. The gap between the spark plug elec-
trodes is too small.
1. Cooling air flow is obstructed.
2. Defective spark plug.
1. The tiller has not been properly assem-
bled. The power tiller assembly is not
balanced
www.scheppach.com
Solution
1. Move the starter to the appropriate
position
2. Fill the tank
3. Clean the air filter components
4. Tighten the plug to 25-30 Nm
5. Attach the plug wire to the plug
6. Adjust the spacing between the
electrodes to between 0.7 to 0.8
mm
7. Install a new spark plug that is cor-
rectly placed
8. Remove the air filter and pull on the
starter cable continually until the
carburetor cleans itself and reinstall
the air filter Set the gasoline switch
to the
position
1. Contact the vendor service
2. Drain the reservoir, clean it and fill it
with clean fresh gasoline
3. Clean or replace the tank plug
4. Clean the air filter components
1. Clean the air filter components
2. Remove any projectile debris
3. Remove any debris from the cooling
fins and the air passage
1. Adjust the spacing between the
electrodes to between 0.7 and 0.8
mm
1. Remove all debris from the mount-
ing, ventilator, air passages and
cooling fins
2. Install an LG F6TC spark plug.
1. Check that all parts of the engine
are properly assembled
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